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Oligomeric calix[4]arene-thiacrown ether for toxic heavy metals
- Source :
- Journal of Polymer Science Part A: Polymer Chemistry. 42:186-193
- Publication Year :
- 2003
- Publisher :
- Wiley, 2003.
-
Abstract
- A new oligomeric calix[4]arene-thiacrown-4 (5) was synthesized via a condensation reaction of 5,11,17,23-tetra-tert-butyl-25,27-bis-(4-aminobenzyloxy)-calix[4]arene-thiacrown-4 (4) with adipoyl dichloride. In this oligomerization reaction only five/six calix[4]arene-thiacrown-4 units were linked in the oligomeric chain. The complexation studies of 5 were made with liquid–liquid- extraction and solid–liquid-sorption procedures. For comparison, the extraction efficiencies of monomers 1, 3, and 4 to selected transition metals are reported. The selectivity of monomers 3 and 4 toward Cu2+, Hg2+, and Pb2+ was lost after oligomerization in the two-phase extraction systems. © 2003 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 186–193, 2004
Details
- ISSN :
- 10990518 and 0887624X
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- Journal of Polymer Science Part A: Polymer Chemistry
- Accession number :
- edsair.doi...........ea307c1401ac88604c4d67e672a3d609